Young Turk
apostate
backslider
bolter
breakaway
collaborationist
collaborator
convert
defector
demurrer
denominationalist
deserter
dissenter
dissentient
dissident
divisive
factionist
fifth columnist
heretic
heretical
heterodox
misbeliever
mugwump
nonconformist
nonjuring
nonjuror
objector
opinionist
opposition voice
partisan
proselyte
protestant
protester
quisling
radical
rebellious
recidivist
recreant
recusant
renegade
renegado
renegate
reversionist
runagate
schismatical
seceder
secessionist
sectarian
Arminian
Carmelite
Socinian
Trappist
anti-indian
communistic
contumacious
gaudeam
hardline
heavy-built
infringer
ingrateful
masturbator
pestilent
popish
pre-ordered
revisionist
separatist
treasonable
tumultuary
turncoat